Crash in help

Thread 1 (Thread 0x7f8a2a97ae40 (LWP 61281)):
#0  0x00007f8a2b30a56e in QExplicitlySharedDataPointer<QFontPrivate>::QExplicitlySharedDataPointer (this=0x7ffe028e36a0, o=...) at /home/jarek/dev/qt-65/qtbase/src/corelib/tools/qshareddata.h:149
#1  0x00007f8a2b301ceb in QFont::QFont (this=0x7ffe028e36a0, font=...) at /home/jarek/dev/qt-65/qtbase/src/gui/text/qfont.cpp:750
#2  0x00007f89f8062b30 in toQFont (hFont=0) at /home/jarek/dev/creator-13/src/libs/qlitehtml/src/container_qpainter.cpp:38
#3  0x00007f89f806bb1d in operator() (__closure=0x7ffe028e378a, e=...) at /home/jarek/dev/creator-13/src/libs/qlitehtml/src/container_qpainter.cpp:1210
#4  0x00007f89f806c5bf in DocumentContainer::findText (this=0x55bd8f4a4548, text=..., flags=..., incremental=true, wrapped=0x7ffe028e3a16, success=0x7ffe028e38bf, oldSelection=0x7ffe028e3940, newSelection=0x7ffe028e3960) at /home/jarek/dev/creator-13/src/libs/qlitehtml/src/container_qpainter.cpp:1241
#5  0x00007f89f8081fc2 in QLiteHtmlWidget::findText (this=0x55bda01b34a0, text=..., flags=..., incremental=true, wrapped=0x7ffe028e3a16) at /home/jarek/dev/creator-13/src/libs/qlitehtml/src/qlitehtmlwidget.cpp:449
#6  0x00007f89f825776d in Help::Internal::LiteHtmlHelpViewer::findText (this=0x55bda0131920, text=..., flags=..., incremental=true, fromSearch=false, wrapped=0x7ffe028e3a16) at /home/jarek/dev/creator-13/src/plugins/help/litehtmlhelpviewer.cpp:220
#7  0x00007f89f81e8791 in Help::Internal::HelpViewerFindSupport::find (this=0x55bd91c2e170, txt=..., findFlags=..., incremental=true) at /home/jarek/dev/creator-13/src/plugins/help/helpfindsupport.cpp:49
#8  0x00007f89f81e867a in Help::Internal::HelpViewerFindSupport::findIncremental (this=0x55bd91c2e170, txt=..., findFlags=...) at /home/jarek/dev/creator-13/src/plugins/help/helpfindsupport.cpp:34
#9  0x00007f8a0315e9e3 in Core::Internal::CurrentDocumentFind::findIncremental (this=0x55bd8dcdcef0, txt=..., findFlags=...) at /home/jarek/dev/creator-13/src/plugins/coreplugin/find/currentdocumentfind.cpp:99
#10 0x00007f8a03176176 in Core::Internal::FindToolBar::invokeFindIncremental (this=0x55bd8dcdcfe0) at /home/jarek/dev/creator-13/src/plugins/coreplugin/find/findtoolbar.cpp:690
#11 0x00007f8a031801d0 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (Core::Internal::FindToolBar::*)()>::call(void (Core::Internal::FindToolBar::*)(), Core::Internal::FindToolBar*, void**) (f=(void (Core::Internal::FindToolBar::*)(Core::Internal::FindToolBar * const)) 0x7f8a031760e2 <Core::Internal::FindToolBar::invokeFindIncremental()>, o=0x55bd8dcdcfe0, arg=0x7ffe028e3d30) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qobjectdefs_impl.h:137
#12 0x00007f8a0317fca5 in QtPrivate::FunctionPointer<void (Core::Internal::FindToolBar::*)()>::call<QtPrivate::List<>, void>(void (Core::Internal::FindToolBar::*)(), Core::Internal::FindToolBar*, void**) (f=(void (Core::Internal::FindToolBar::*)(Core::Internal::FindToolBar * const)) 0x7f8a031760e2 <Core::Internal::FindToolBar::invokeFindIncremental()>, o=0x55bd8dcdcfe0, arg=0x7ffe028e3d30) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qobjectdefs_impl.h:174
#13 0x00007f8a0317f879 in QtPrivate::QSlotObject<void (Core::Internal::FindToolBar::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) (which=1, this_=0x55bd8dceccf0, r=0x55bd8dcdcfe0, a=0x7ffe028e3d30, ret=0x0) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qobjectdefs_impl.h:432
#14 0x00007f8a2a19dc13 in QtPrivate::QSlotObjectBase::call (this=0x55bd8dceccf0, r=0x55bd8dcdcfe0, a=0x7ffe028e3d30) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qobjectdefs_impl.h:374
#15 0x00007f8a2a216714 in doActivate<false> (sender=0x55bd8dcdee40, signal_index=7, argv=0x7ffe028e3d30) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qobject.cpp:4036
#16 0x00007f8a2a20c6b9 in QMetaObject::activate (sender=0x55bd8dcdee40, m=0x7f8a2c97c3c0 <QLineEdit::staticMetaObject>, local_signal_index=0, argv=0x7ffe028e3d30) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qobject.cpp:4096
#17 0x00007f8a2c244790 in QLineEdit::textChanged (this=0x55bd8dcdee40, _t1=...) at /home/jarek/dev/qt-65-build/qtbase/src/widgets/Widgets_autogen/include/moc_qlineedit.cpp:696
#18 0x00007f8a2c24393a in QLineEdit::qt_static_metacall (_o=0x55bd8dcdee40, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7ffe028e3f90) at /home/jarek/dev/qt-65-build/qtbase/src/widgets/Widgets_autogen/include/moc_qlineedit.cpp:525
#19 0x00007f8a2a2167c2 in doActivate<false> (sender=0x55bd8d57f350, signal_index=6, argv=0x7ffe028e3f90) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qobject.cpp:4048
#20 0x00007f8a2a20c6b9 in QMetaObject::activate (sender=0x55bd8d57f350, m=0x7f8a2c97cb60 <QWidgetLineControl::staticMetaObject>, local_signal_index=3, argv=0x7ffe028e3f90) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qobject.cpp:4096
#21 0x00007f8a2c255aa6 in QWidgetLineControl::textChanged (this=0x55bd8d57f350, _t1=...) at /home/jarek/dev/qt-65-build/qtbase/src/widgets/Widgets_autogen/include/moc_qwidgetlinecontrol_p.cpp:362
#22 0x00007f8a2c24f5e7 in QWidgetLineControl::finishChange (this=0x55bd8d57f350, validateFromState=68, update=false, edited=true) at /home/jarek/dev/qt-65/qtbase/src/widgets/widgets/qwidgetlinecontrol.cpp:713
#23 0x00007f8a2c24daff in QWidgetLineControl::insert (this=0x55bd8d57f350, newText=...) at /home/jarek/dev/qt-65/qtbase/src/widgets/widgets/qwidgetlinecontrol.cpp:232
#24 0x00007f8a2c255007 in QWidgetLineControl::processKeyEvent (this=0x55bd8d57f350, event=0x7ffe028e4bf0) at /home/jarek/dev/qt-65/qtbase/src/widgets/widgets/qwidgetlinecontrol.cpp:1915
#25 0x00007f8a2c23ff9c in QLineEdit::keyPressEvent (this=0x55bd8dcdee40, event=0x7ffe028e4bf0) at /home/jarek/dev/qt-65/qtbase/src/widgets/widgets/qlineedit.cpp:1742
#26 0x00007f8a2cc2a73c in Utils::CompletingLineEdit::keyPressEvent (this=0x55bd8dcdee40, e=0x7ffe028e4bf0) at /home/jarek/dev/creator-13/src/libs/utils/completinglineedit.cpp:45
#27 0x00007f8a2ccb3136 in Utils::FancyLineEdit::keyPressEvent (this=0x55bd8dcdee40, event=0x7ffe028e4bf0) at /home/jarek/dev/creator-13/src/libs/utils/fancylineedit.cpp:384
#28 0x00007f8a2c03a2e3 in QWidget::event (this=0x55bd8dcdee40, event=0x7ffe028e4bf0) at /home/jarek/dev/qt-65/qtbase/src/widgets/kernel/qwidget.cpp:8977
#29 0x00007f8a2c23f3a2 in QLineEdit::event (this=0x55bd8dcdee40, e=0x7ffe028e4bf0) at /home/jarek/dev/qt-65/qtbase/src/widgets/widgets/qlineedit.cpp:1476
#30 0x00007f8a2cc2a659 in Utils::CompletingLineEdit::event (this=0x55bd8dcdee40, e=0x7ffe028e4bf0) at /home/jarek/dev/creator-13/src/libs/utils/completinglineedit.cpp:32
#31 0x00007f8a2bfa9d96 in QApplicationPrivate::notify_helper (this=0x55bd8d5797c0, receiver=0x55bd8dcdee40, e=0x7ffe028e4bf0) at /home/jarek/dev/qt-65/qtbase/src/widgets/kernel/qapplication.cpp:3290
#32 0x00007f8a2bfa73f8 in QApplication::notify (this=0x55bd8d5760a0, receiver=0x55bd8dcdee40, e=0x7ffe028e4bf0) at /home/jarek/dev/qt-65/qtbase/src/widgets/kernel/qapplication.cpp:2718
#33 0x00007f8a2a17a435 in QCoreApplication::notifyInternal2 (receiver=0x55bd8dcdee40, event=0x7ffe028e4bf0) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qcoreapplication.cpp:1119
#34 0x00007f8a2a17a4c8 in QCoreApplication::forwardEvent (receiver=0x55bd8dcdee40, event=0x7ffe028e4bf0, originatingEvent=0x0) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qcoreapplication.cpp:1134
#35 0x00007f8a2c06e12f in QWidgetWindow::handleKeyEvent (this=0x55bd8db83b20, event=0x7ffe028e4bf0) at /home/jarek/dev/qt-65/qtbase/src/widgets/kernel/qwidgetwindow.cpp:665
#36 0x00007f8a2c06c196 in QWidgetWindow::event (this=0x55bd8db83b20, event=0x7ffe028e4bf0) at /home/jarek/dev/qt-65/qtbase/src/widgets/kernel/qwidgetwindow.cpp:234
#37 0x00007f8a2bfa9d96 in QApplicationPrivate::notify_helper (this=0x55bd8d5797c0, receiver=0x55bd8db83b20, e=0x7ffe028e4bf0) at /home/jarek/dev/qt-65/qtbase/src/widgets/kernel/qapplication.cpp:3290
#38 0x00007f8a2bfa9b88 in QApplication::notify (this=0x55bd8d5760a0, receiver=0x55bd8db83b20, e=0x7ffe028e4bf0) at /home/jarek/dev/qt-65/qtbase/src/widgets/kernel/qapplication.cpp:3241
#39 0x00007f8a2a17a435 in QCoreApplication::notifyInternal2 (receiver=0x55bd8db83b20, event=0x7ffe028e4bf0) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qcoreapplication.cpp:1119
#40 0x00007f8a2a17b067 in QCoreApplication::sendSpontaneousEvent (receiver=0x55bd8db83b20, event=0x7ffe028e4bf0) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qcoreapplication.cpp:1551
#41 0x00007f8a2afe7ed9 in QGuiApplicationPrivate::processKeyEvent (e=0x7ffe028e4db0) at /home/jarek/dev/qt-65/qtbase/src/gui/kernel/qguiapplication.cpp:2442
#42 0x00007f8a2afe685e in QGuiApplicationPrivate::processWindowSystemEvent (e=0x7ffe028e4db0) at /home/jarek/dev/qt-65/qtbase/src/gui/kernel/qguiapplication.cpp:2071
#43 0x00007f8a245cf7e0 in QIBusPlatformInputContext::filterEventFinished (this=0x55bd8d60d890, call=0x55bd9eaac740) at /home/jarek/dev/qt-65/qtbase/src/plugins/platforminputcontexts/ibus/qibusplatforminputcontext.cpp:507
#44 0x00007f8a245d8ca5 in QtPrivate::FunctorCall<QtPrivate::IndexesList<0>, QtPrivate::List<QDBusPendingCallWatcher*>, void, void (QIBusPlatformInputContext::*)(QDBusPendingCallWatcher*)>::call (f=(void (QIBusPlatformInputContext::*)(QIBusPlatformInputContext * const, QDBusPendingCallWatcher *)) 0x7f8a245cf30c <QIBusPlatformInputContext::filterEventFinished(QDBusPendingCallWatcher*)>, o=0x55bd8d60d890, arg=0x7ffe028e50a0) at /home/jarek/dev/qt-65-build/qtbase/include/QtCore/../../../../qt-65/qtbase/src/corelib/kernel/qobjectdefs_impl.h:137
#45 0x00007f8a245d8573 in QtPrivate::FunctionPointer<void (QIBusPlatformInputContext::*)(QDBusPendingCallWatcher*)>::call<QtPrivate::List<QDBusPendingCallWatcher*>, void> (f=(void (QIBusPlatformInputContext::*)(QIBusPlatformInputContext * const, QDBusPendingCallWatcher *)) 0x7f8a245cf30c <QIBusPlatformInputContext::filterEventFinished(QDBusPendingCallWatcher*)>, o=0x55bd8d60d890, arg=0x7ffe028e50a0) at /home/jarek/dev/qt-65-build/qtbase/include/QtCore/../../../../qt-65/qtbase/src/corelib/kernel/qobjectdefs_impl.h:174
#46 0x00007f8a245d779d in QtPrivate::QSlotObject<void (QIBusPlatformInputContext::*)(QDBusPendingCallWatcher*), QtPrivate::List<QDBusPendingCallWatcher*>, void>::impl (which=1, this_=0x55bda1ac0560, r=0x55bd8d60d890, a=0x7ffe028e50a0, ret=0x0) at /home/jarek/dev/qt-65-build/qtbase/include/QtCore/../../../../qt-65/qtbase/src/corelib/kernel/qobjectdefs_impl.h:432
#47 0x00007f8a2a19dc13 in QtPrivate::QSlotObjectBase::call (this=0x55bda1ac0560, r=0x55bd8d60d890, a=0x7ffe028e50a0) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qobjectdefs_impl.h:374
#48 0x00007f8a2a216714 in doActivate<false> (sender=0x55bd9eaac740, signal_index=3, argv=0x7ffe028e50a0) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qobject.cpp:4036
#49 0x00007f8a2a20c6b9 in QMetaObject::activate (sender=0x55bd9eaac740, m=0x7f8a288c73e0 <QDBusPendingCallWatcher::staticMetaObject>, local_signal_index=0, argv=0x7ffe028e50a0) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qobject.cpp:4096
#50 0x00007f8a2882f080 in QDBusPendingCallWatcher::finished (this=0x55bd9eaac740, _t1=0x55bd9eaac740) at /home/jarek/dev/qt-65-build/qtbase/src/dbus/DBus_autogen/include/moc_qdbuspendingcall.cpp:201
#51 0x00007f8a2882f12f in QDBusPendingCallWatcherPrivate::_q_finished (this=0x55bda2612460) at /home/jarek/dev/qt-65/qtbase/src/dbus/qdbuspendingcall.cpp:460
#52 0x00007f8a2882edba in QDBusPendingCallWatcher::qt_static_metacall (_o=0x55bd9eaac740, _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0x55bda298f358) at /home/jarek/dev/qt-65-build/qtbase/src/dbus/DBus_autogen/include/moc_qdbuspendingcall.cpp:139
#53 0x00007f8a2a2034ed in QMetaCallEvent::placeMetaCall (this=0x55bda298f310, object=0x55bd9eaac740) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qobject.cpp:652
#54 0x00007f8a2a20488c in QObject::event (this=0x55bd9eaac740, e=0x55bda298f310) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qobject.cpp:1438
#55 0x00007f8a2bfa9d96 in QApplicationPrivate::notify_helper (this=0x55bd8d5797c0, receiver=0x55bd9eaac740, e=0x55bda298f310) at /home/jarek/dev/qt-65/qtbase/src/widgets/kernel/qapplication.cpp:3290
#56 0x00007f8a2bfa9b88 in QApplication::notify (this=0x55bd8d5760a0, receiver=0x55bd9eaac740, e=0x55bda298f310) at /home/jarek/dev/qt-65/qtbase/src/widgets/kernel/qapplication.cpp:3241
#57 0x00007f8a2a17a435 in QCoreApplication::notifyInternal2 (receiver=0x55bd9eaac740, event=0x55bda298f310) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qcoreapplication.cpp:1119
#58 0x00007f8a2a17afd7 in QCoreApplication::sendEvent (receiver=0x55bd9eaac740, event=0x55bda298f310) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qcoreapplication.cpp:1537
#59 0x00007f8a2a17bf2e in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x55bd8d577150) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qcoreapplication.cpp:1899
#60 0x00007f8a2a17b7fc in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qcoreapplication.cpp:1758
#61 0x00007f8a2a5cdfd8 in postEventSourceDispatch (s=0x55bd8d60af70) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:243
#62 0x00007f8a28920d3b in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#63 0x00007f8a28976258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#64 0x00007f8a2891e3e3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#65 0x00007f8a2a5ce89a in QEventDispatcherGlib::processEvents (this=0x55bd8d5f3970, flags=...) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qeventdispatcher_glib.cpp:393
#66 0x00007f8a2591d22a in QXcbGlibEventDispatcher::processEvents (this=0x55bd8d5f3970, flags=...) at /home/jarek/dev/qt-65/qtbase/src/plugins/platforms/xcb/qxcbeventdispatcher.cpp:96
#67 0x00007f8a2a18e941 in QEventLoop::processEvents (this=0x7ffe028e5910, flags=...) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qeventloop.cpp:100
#68 0x00007f8a2a18ecb0 in QEventLoop::exec (this=0x7ffe028e5910, flags=...) at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qeventloop.cpp:182
#69 0x00007f8a2a17ada0 in QCoreApplication::exec () at /home/jarek/dev/qt-65/qtbase/src/corelib/kernel/qcoreapplication.cpp:1440
#70 0x00007f8a2afe6146 in QGuiApplication::exec () at /home/jarek/dev/qt-65/qtbase/src/gui/kernel/qguiapplication.cpp:1925
#71 0x00007f8a2bfa6d83 in QApplication::exec () at /home/jarek/dev/qt-65/qtbase/src/widgets/kernel/qapplication.cpp:2569
#72 0x000055bd8b5f6896 in main (argc=1, argv=0x7ffe028e6078) at /home/jarek/dev/creator-13/src/app/main.cpp:888